The Metric System
And Unified thread form is generally stronger.
British standard also used on all English bicycles..
and BSP is still used on a surprising number of racecars (road racing), probably human inertia.
Not for some things.
And Unified thread form is generally stronger.
and it turns out that Whitworth thread is also very good form for spreading the load over more of the thread.
British standard also used on all English bicycles..
and BSP is still used on a surprising number of racecars (road racing), probably human inertia.
